Yellow 6
Chemical formula: C16H10N2O7S2.2Na.
Full name: 6-HYDROXY-5-((P-SULPHOPHENYL)AZO)-2-NAPHTHALENESULPHONIC ACID DISODIUM SALT
Molecular weight: 452.37
Comes in orange red crystals, used for coloring foods, drugs and cosmetics. An example of which would be Sunkist soda.